Allow rel attribute on SVG <a> element
Allow rel attribute on SVG <a> element

Fixes https://github.com/validator/validator/pull/1008
Closes https://github.com/validator/validator/issues/1009

validator/validator,takenspc/validator,takenspc/validator,validator/validator,takenspc/validator,validator/validator,validator/validator,validator/validator,takenspc/validator,takenspc/validator